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The Keystone Gold-Copper District, Medicine Bow Mountains, Southeastern Wyoming
May 2002 by W. Dan Hausel
The Keystone district includes a group of mineralized shear zones and veins that are associated with the Keystone Quartz Diorite in the Medicine Bow Mountains of southwestern Wyoming. Gold production from this district is unknown, although some estimates suggest that 7,500 to more than 12,000 ounces were produced.Springtime Sampling In The High Desert
As the ground thaws and dries out and the warmth of spring starts to settle in, it’s time to start afresh with a new prospecting season.
San Diego County Tourmaline
San Diego County, California, has long been considered the finest source of pink tourmaline in the world. The Pala, Mesa Grande, Rincon, and Ramona districts in the northern portion of the county have produced tourmaline, kunzite, and other gems in great quantities, much of it jewelry and museum-quality specimens.
Following Clues to a Hidden Gold Deposit
Many years ago I was in the American Canyon. I remembered a few details about a placer deposit there, so we decided to make a trip down and re-check some of these old workings.
Please note:
Due to technical difficulties, the online version of the February 2003 issue of ICMJ is currently unavailable. Please know we are working on this and will get the February issue uploaded as soon as possible. In the meantime, please enjoy the other issues of 2003! Thank you for your understanding! —ICMJ
Ask The Experts
Q: Is this gold or some other metal?
Mining Reform and Congress
After years of negotiations between environmentalists and industry groups, observers say efforts to reform the 1872 Mining Law may finally pick up steam in Congress.
Hardrock in Downieville
A recent weekend trip found us leaving the Grass Valley, California area to meet up with some friends in Downieville.
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